<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/17/399a" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Draft letter, from Sir John Herschel to John Tyndall</dc:title>
  <dc:description>Autograph letter signed by sender?. Describes experiment involving viewing spectrum of a light flash as it advances and recedes. [Marked 'not sent on further consideration.']</dc:description>
  <dc:date>3 March 1866</dc:date>
</rdf:Description>